The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 2023
Filed:
Aug. 25, 2022
Applicant:
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Inventor:
Mitsuhiro Tamura, Kanagawa, JP;
Assignee:
SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 57/021 (2012.01); F16H 1/32 (2006.01); F16H 55/08 (2006.01); F16H 57/032 (2012.01); F16H 49/00 (2006.01);
U.S. Cl.
CPC ...
F16H 1/32 (2013.01); F16H 55/0833 (2013.01); F16H 49/001 (2013.01); F16H 57/021 (2013.01); F16H 57/032 (2013.01); F16H 2001/323 (2013.01);
Abstract
There is provided a technique capable of increasing support rigidity of a bearing when a support member expands due to moisture absorption. A power transmission device includes: a rotary shaft; a support member disposed outside the rotary shaft in a radial direction; a bearing disposed between the rotary shaft and the support member; and a fitting member fitted to an outer peripheral portion of the support member. The fitting member is made of a material having lower hygroscopicity than hygroscopicity of a material of the support member.